Twin Screw Compressor Type HITACHI Water Cooled Water Chillers [H] SERIES

Transcription

1 Twin Screw Compressor Type HITACHI Water Cooled Water Chillers [H] SERIES Nominal Cooling Capacity Range R22: kw 1825 kw 119,970kcal/h 1,569,500kcal/h 39.7 RT RT R407C: 130 kw 1755 kw 111,800kcal/h 1,509,300kcal/h 37 RT RT Technical Catalog I -Design Information- Models RCU(G)40 RCU(G)50 RCU(G)60 RCU(G)80 RCU(G)100 RCU(G)120 RCU(G)150 RCU(G)180 RCU(G)220 RCU(G)260 RCU(G)300 RCU(G)340 RCU(G)380 RCU(G)410 RCU(G)450 RCU(G)490 RCU(G)530 RCU(G)570 The HITACHI H series water-cooled water chillers are designed for all the conveniences of chilled water air-conditioning systems, especially for hotels, stores, hospitals modern building and process cooling applications of modern manufacturing industries. HITACHI water-cooled water chillers are equipped with newly-developed HITACHI A type semi-hermetic screw compressors, which feature higher precision and simplicity of construction by eliminating such items as pistons, connecting rods, valve plates, oil pumps and mechanical linkages for capacity controls in the reciprocating compressors. These features result in lower noise and lower vibration, reliable long period operation, and installation feasibility on any floor of the building. The units are composed of a compressor(s), a condenser(s),a direct-expansion water cooler, a electronic expansion valve(s),and auxiliary and control equipment. The units can be operated with the utmost simplicity. 1

2 FEATURES The Combination of HITACHI Screw Compressor and Microcomputer Inclines HITACHI Water-Cooled Water Chillers to be perfect. Discharged Gas Outlet Motor for Compressor Oil Separator Slide Valve Suction Gas Inlet Bearing High Efficiency Various Functions Micro-processor control for various functions Precise Temperature Control A micro-processor has been applied to the new models for following various functions. Alarm indication for each cycle by 7-segment Rotating control of compressor starting order Current limitation control Automatic start after instantaneous power failure. Remote /location switch. Communication adapter connecting the unit to BMS (Building Management System) is a optional accessory, for the details, please refer to technology catalog I. Liquid crystal screen display (Option) Big colorful liquid crystal touch panel(option) Provides English and Chinese display interfaces. Message board function(for shift) Real time Information Return to factory setting Time starting function With RS485 physics connection,communication adapter provides communication to BMS. (Building Management System) Chinese Interface English Interface 1

3 FEATURES Lower Noise Lower Vibration and Reliable Long Period Operation The Hitachi Screw Water Chiller Can Meet Your Requirements Hitachi s Semi-Hermetic Screw Compressor The newly-developed HITACHI semi-hermetic screw compressors feature long life and quiet operation due to simplicity of construction when compared with the conventional reciprocating compressors. A Symmetrical Rotor Profile and Other Features. This profile of the compressor rotor, five-six (male and female) type, assures excellent efficiency even in high compression ranges, in addition to these uniquely-profile rotors, the following features are incorporated. Use of special bearing, resulting in long life and high reliability Patented capacity control system, enabling simple control system. High precision and high-grade finishing rotors, enabling no oil-cooling system. Automatic Capacity Control An Automatic capacity control mechanism enables the unit to perform economical and energy-saving operation depending on various conditions. Additionally, two(2) independent refrigeration cycles are provided for model RCU(G)80 RCU(G)100 RCU(G)120 RCU(G)220 RCU(G)260 RCU(G)300 RCU(G)340 and RCU(G)380 Three(3) independent refrigeration cycles are provided for model RCU(G)150 RCU(G)180 RCU(G)410 RCU(G)450 RCU(G)490and RCU(G)530 RCU(G)570 to avoid complete shutdown and ensure 50% of capacity provided at the less even in maintenance. Easy for Maintenance Equipped with accessibility components such as Pressure Relief Valve and Oil Sight Glass, easy maintenance is obtained. Factory-Charged The refrigeration cycle is charged with refrigerant and sealed under the strict quality control, therefore installation and operation can be performed in a short period of time. Factory-Wires Only power wiring and water piping are required in the field. Most Reliable Protective and Ancillary Components The units are protected against any assumed failure of operation, based on the following components: Electronic Timer for Compressors, Three-Phase Quick Response Overcurrent Relay, Internal Thermostats for Compressor Motors, Freeze Protection Thermistors. Pressure Relief Valve, Oil Sight Glass, Oil Heater and Reverse-Phase Protection Relays for Compressors. Hour Meter This device indicates the operation hours of the screw compressor; therefore, accurate maintenance time can be checked with this hour meter. Standard Accessories The following accessories are supplied with the unit: 1. Vibration-Proof Rubber Mats 2. Foundation Bolts The combination of these mats and bolts effectively minimizes noise and vibration, and is coupled with facilitated installation procedures. The following accessories are optional: 1. Communication adapter connecting the unit to BMS (Building Management System) is an optional accessory. ( LONWORKS or RS485 option) 2. Big colorful liquid crystal screen display.( both English and Chinese can be supplied). Please get in touch with HITACHI or HITACHI distributor if required. 2

4 Model Standard Liquid Crystal Display General Data (R22) RCU40WHYZ RCU50WHYZ RCU60WHYZ RCU80WHYZ RCU100WHYZ RCU120WHYZ RCU150WHYZ RCU180WHYZ RCU220WHYZ RCU40WHYZ - E RCU50WHYZ - E RCU60WHYZ - E RCU80WHYZ - E RCU100WHYZ - E RCU120WHYZ - E RCU150WHYZ - E RCU180WHYZ - E RCU220WHYZ -E kw Nominal Cooling Capacity *1 kcal/h 119, , , , , , , , ,180 RT Condenser Water Flow Rate m 3 /h x 73.1 Chilled Water Flow Rate m 3 /h x 61.3 Condenser Pressure Drop kpa x 69 Water Cooler Pressure Drop kpa x 106 Cooling Capacity Control Continuous Capacity Control % , ,(7.5) *2, ,(5) *2, ,(7.5) *2,0 Height mm 1,506 1,495 1,685 1,860 Outer Dimensions Width mm 950 1,070 1,220 2,622 Depth mm 1,764 2,759 3,170 1,922 Type R22 Refrigerant Flow Control Electronic Expansion Valve Number Of Circuits GENERAL DATA 3 Type Semi-Hermetic Screw Type Compressor Model 40ASCCW-Z 50ASCCW-Z 60ASCCW-Z 40ASCCW-Z 50ASCCW-Z 60ASCCW-Z 50ASCCW-Z 60ASCCW-Z 100ASCCW-Z Quantity Condenser Water Cooler Shell-and-Tube Type Shell-and-Tube Type,Dry Expansion Type Safety Devices Three-Phase Overcurrent Relay, High-Pressure Switch, Low-Pressure Switch, Oil Heater, Internal Thermostat for Compressor Motor, Freeze Protection Thermistor, Reverse Phase Protection Relay, Discharge Gas Thermostat, Operation Hour-Meter and Pressure Relief Valve. Inlet Rc Withφ78 Inner Diameter Companion Flange With φ142 Inner Diameter Companion Outlet Rc Withφ78 Inner Diameter Companion Flange Flange Inlet R With φ142 Inner Diameter Companion Flange Outlet R Shipping *3 Width mm 1,146 1,250 1, ,464 Height mm 1,747 1,765 1, ,150 Depth mm 2,960 3, ,247 kg 1,072 1,142 1,212 1,800 1,980 2,070 3,010 3, ,726 kg 1,170 1,240 1,310 1,960 2,140 2,230 3,220 3, ,888 kw Piping Connections for Condenser Piping Connections for Water Cooler 1,898 Net Weight Shipping Weight Input Power Notes: 1 The nominal cooling capacities are based on the GB/T (*1) Chilled Water Inlet/Outlet Temperature 12/7 Condenser Water Inlet/Outlet Temperature 30/35 2 Applicable Power Supplies Main Power Source 3φ Control Power Supplies 1φ 380V 50Hz 220V 50Hz 415V 50Hz 240V 50Hz 3 Working range x With φ116 Inner Diameter Companion Flange 2 x With φ142 Inner Diameter Companion Flange Condense Water Outlet Temperature 22 to 40 Chilled Water Outlet Temperature 5 to ( ) marked with *2 is available by selection switch. 5 The units greater than 220 WHYZ including 220 WHYZ consist of two modules or more and are separately shipped(*3) 6 Communication adapter connecting the unit to BMS (Building Management System) is an optional accessory, please get in touch with HITACHI or HITACHI distributor if required. 7 The unit with liquid crystal display differs from the unit with segment code display in electric box, however, both have the same outer dimensions.

5 4 Model Standard Liquid Crystal Display General Data (R22) RCU260WHYZ RCU300WHYZ RCU340WHYZ RCU380WHYZ RCU410WHYZ RCU450WHYZ RCU490WHYZ RCU530WHYZ RCU570WHYZ RCU260WHYZ -E RCU300WHYZ -E RCU340WHYZ -E RCU380WHYZ -E RCU410WHYZ -E RCU450WHYZ -E RCU490WHYZ -E RCU530WHYZ -E RCU570WHYZ -E kw ,094 1,217 1,328 1,457 1,579 1,703 1,825 Nominal Cooling Capacity *1 kcal/h 724, , ,840 1,046,620 1,142,080 1,253,020 1,357,940 1,464,580 1,569,500 RT Condenser Water Flow Rate(No.1/No.2/No.3) m 3 /h 99.6 / x / x / 99.6 / x / 99.6 / / / x Chilled Water Flow Rate(No.1/No.2/No.3) m 3 /h 83.5 / x / x / 83.5 / x / 83.5 / / / x Condenser Pressure Drop(No.1/No.2/No.3) kpa 55 / 69 2 x / 55 2 x / 55 / 69 3 x / 55 / / 70 / 55 3 x 70 Water Cooler Pressure Drop(No.1/No.2/No.3) kpa 83 / x / 83 2 x / 83 / x / 83 / / 93 / 83 3 x 93 Cooling Capacity Control Continuous Capacity Control % ,(7.5) *2, ,(5) *2,0 Height mm 1,879 1,879 Outer Dimensions Width mm 2,622 3,983 Depth mm 1,922 1,922 Type R22 Refrigerant Flow Control Electronic Expansion Valve Number Of Circuits 2 3 Type Semi-Hermetic Screw Type Compressor Model No.1/No.2/No.3 130/100 ASCCW-Z 130/130 ASCCW-Z 170 /130 ASCCW-Z 170/170 ASCCW-Z 130/130/100 ASCCW-Z 130/130/130 ASCCW-Z 170/130/130 ASCCW-Z 170/170/130 ASCCW-Z 170/170/170 ASCCW-Z Quantity 2 3 Condenser Water Cooler Safety Devices Shell-and-Tube Type Shell-and-Tube Type,Dry Expansion Type Three-Phase Overcurrent Relay, High-Pressure Switch, Low-Pressure Switch, Oil Heater, Internal Thermostat for Compressor Motor, Freeze Protection Thermistor, Reverse Phase Protection Relay, Discharge Gas Thermostat, Operation Hour-Meter and Pressure Relief Valve. Inlet 2 x Withφ116 Inner Diameter Companion Flange 3 x Withφ116 Inner Diameter Companion Flange Outlet 2 x Withφ116 Inner Diameter Companion Flange 3 x Withφ116 Inner Diameter Companion Flange Inlet 2 x Withφ142 Inner Diameter Companion Flange 3 x Withφ142 Inner Diameter Companion Flange Outlet 2 x Withφ142 Inner Diameter Companion Flange 3 x Withφ142 Inner Diameter Companion Flange Height mm 2 2, ,150 Shipping *3 Width mm 2 1, ,464 Depth mm 2 2, ,247 Net Weight No.1/No.2/No.3 kg 2,858 / 2,726 2,858 / 2,858 2,988 / 2,858 2 x 2,988 2,858 / 2,858 / 2,726 3 x 2,858 2,988 /2,858 / 2,858 2,988 / 2,988 /2,858 3 x 2,988 Shipping Weight *3 No.1/No.2/No.3 kg 3,020 / 2,888 3,020 / 3,020 3,150/ 3,020 2 x 3,150 3,020 / 3,020 / 2,888 3 x 3,020 3,150 /3,020 / 3,020 3,150 / 3,150 / 3,020 3 x 3,150 Input Power kw Piping Connections for Condenser Piping Connections for Water Cooler Notes: 1 The nominal cooling capacities are based on the GB/T (*1) Chilled Water Inlet/Outlet Temperature 12/7 Condenser Water Inlet/Outlet Temperature 30/35 2 Applicable Power Supplies Main Power Source 3φ Control Power Supplies 1φ 380V 50Hz 220V 50Hz 415V 50Hz 240V 50Hz 3 Working range Condense Water Outlet Temperature 22 to 40 Chilled Water Outlet Temperature 5 to ( ) marked with *2 is available by selection switch. 5 The units greater than 220 WHYZ including 220 WHYZ consist of two modules or more and are separately shipped(*3) 6 Communication adapter connecting the unit to BMS (Building Management System) is an optional accessory, please get in touch with HITACHI or HITACHI distributor if required. 7 The unit with liquid crystal display differs from the unit with segment code display in electric box, however, both have the same outer dimensions. GENERAL DATA

6 5 Model Standard Liquid Crystal Display General Data (R407C) RCUG40WHYZ RCUG50WHYZ RCUG60WHYZ RCUG80WHYZ RCUG100WHYZ RCUG120WHYZ RCUG150WHYZ RCUG180WHYZ RCUG220WHYZ RCUG40WHYZ - E RCUG50WHYZ - E RCUG60WHYZ - E RCUG80WHYZ - E RCUG100WHYZ -E RCUG120WHYZ -E RCUG150WHYZ- E RCUG180WHYZ - E RCUG220WHYZ - E kw Nominal Cooling Capacity *1 kcal/h 111, , , , , , , , ,680 RT Condenser Water Flow Rate m 3 /h x 71.7 Chilled Water Flow Rate m 3 /h x 59.2 Condenser Pressure Drop kpa x 68 Water Cooler Pressure Drop kpa x 100 Cooling Capacity Control Continuous Capacity Control % , ,(7.5) *2, ,(5) *2, ,(7.5) *2,0 Height mm 1,506 1,495 1,685 1,860 Outer Dimensions Width mm 950 1,070 1,220 2,622 Depth mm 1,764 2,759 3,170 1,922 Type R407C Refrigerant Flow Control Electronic Expansion Valve Number Of Circuits Type Semi-Hermetic Screw Type Compressor Model 40ASCCW-Z 50ASCCW-Z 60ASCCW-Z 40ASCCW-Z 50ASCCW-Z 60ASCCW-Z 50ASCCW-Z 60ASCCW-Z 100ASCCW-Z Quantity Condenser Water Cooler Safety Devices Shell-and-Tube Type Shell-and-Tube,Dry Expansion Valve Three-Phase Overcurrent Relay, High-Pressure Switch, Low-Pressure Switch, Oil Heater, Internal Thermostat for Compressor Motor, Freeze Protection Thermistor, Reverse Phase Protection Relay, Discharge Gas Thermostat, Operation Hour-Meter and Pressure Relief Valve. Piping Connections Inlet Rc Withφ78 Inner Diameter Companion Flange With φ142 Inner Diameter Companion 2 x With φ116 Inner Diameter for Condenser Outlet Rc Withφ78 Inner Diameter Companion Flange Flange Companion Flange Piping Connections Inlet R x With φ142 Inner Diameter With φ142 Inner Diameter Companion Flange for Water Cooler Outlet R Companion Flange Shipping *3 Width mm 1,146 1,250 1, ,464 Height mm 1,747 1,765 1, ,150 Depth mm 1,898 2,960 3, ,247 Net Weight kg 1,072 1,142 1,212 1,800 1,980 2,070 3,010 3, ,726 Shipping Weight *3 kg 1,170 1,240 1,310 1,960 2,140 2,230 3,220 3, ,888 Input Power kw GENERAL DATA Notes: 1 The nominal cooling capacities are based on the GB/T (*1) Chilled Water Inlet/Outlet Temperature 12/7 Condenser Water Inlet/Outlet Temperature 30/35 2 Applicable Power Supplies Main Power Source 3φ Control Power Supplies 1φ 380V 50Hz 220V 50Hz 415V 50Hz 240V 50Hz 3 Working range Condense Water Outlet Temperature 22 to 37 Chilled Water Outlet Temperature 5 to ( ) marked with *2 is available by selection switch. 5 The units greater than 220 WHYZ including 220 WHYZ consist of two modules or more and are separately shipped(*3) 6 Communication adapter connecting the unit to BMS (Building Management System) is an optional accessory, please get in touch with HITACHI or HITACHI distributor if required. 7 The unit with liquid crystal display differs from the unit with segment code display in electric box, however, both have the same outer dimensions

7 6 Model Standard Liquid Crystal Display General Data (R407C) RCUG260WHYZ RCUG300WHYZ RCUG340WHYZ RCUG380WHYZ RCUG410WHYZ RCUG450WHYZ RCUG490WHYZ RCUG530WHYZ RCUG570WHYZ RCUG260WHYZ -E RCUG300WHYZ -E RCUG340WHYZ -E RCUG380WHYZ -E RCUG410WHYZ -E RCUG450WHYZ -E RCUG490WHYZ -E RCUG530WHYZ -E RCUG570WHYZ -E kw ,061 1,170 1,296 1,428 1,537 1,646 1,755 Nominal Cooling Capacity *1 kcal/h 705, , ,460 1,006,200 1,114,560 1,228,080 1,321,820 1,415,560 1,509,300 RT Condenser Water Flow Rate(No.1/No.2/No.3) m 3 /h 99.2 / x / x / 99.1 / x / 99.1 / / / x Chilled Water Flow Rate(No.1/No.2/No.3) m 3 /h 81.9 / x / x / 81.8 / x / 81.8 / / / x Condenser Pressure Drop(No.1/No.2/No.3) kpa 55 / 68 2 x / 55 2 x / 55 / 68 3 x / 55 / / 68 / 55 3 x 68 Water Cooler Pressure Drop(No.1/No.2/No.3) kpa 80 / x / 80 2 x / 80 / x / 80 / / 87 / 80 3 x 87 Cooling Capacity Control Continuous Capacity Control % ,(7.5) *2, ,(5) *2,0 Height mm 1,879 1,879 Outer Dimensions Width mm 2,622 3,983 Depth mm 1,922 1,922 Type R407C Refrigerant Flow Control Electronic Expansion Valve Number Of Circuits 2 3 Type Semi-Hermetic Screw Type Compressor Model No.1/No.2/No.3) 130/100ASCCW-Z 130/130ASCCW-Z 170 /130ASCCW- Z 170/170ASCCW-Z 130/130/100 ASCCW-Z 130/130/130 ASCCW-Z 170/130/130 ASCCW-Z 170/170/130 ASCCW-Z Quantity 2 3 Condenser Water Cooler Safety Devices Shell-and-Tube Type Shell-and-Tube,Dry Expansion Type Three-Phase Overcurrent Relay, High-Pressure Switch, Low-Pressure Switch, Oil Heater, Internal Thermostat for Compressor Motor, Freeze Protection Thermistor, Reverse Phase Protection Relay, Discharge Gas Thermostat, Operation Hour-Meter and Pressure Relief Valve. Piping Connections Inlet 2 x Withφ116 Inner Diameter Companion Flange 3 x Withφ116 Inner Diameter Companion Flange for Condenser Outlet 2 x Withφ116 Inner Diameter Companion Flange 3 x Withφ116 Inner Diameter Companion Flange Piping Connections Inlet 2 x Withφ142 Inner Diameter Companion Flange 3 x Withφ142 Inner Diameter Companion Flange for Water Cooler Outlet 2 x Withφ142 Inner Diameter Companion Flange 3 x Withφ142 Inner Diameter Companion Flange Height mm 2 2, ,150 Shipping *3 Width mm 2 1, ,464 Depth mm 2 2, ,247 Net Weight No.1/No.2/No.3 kg 2,858 / 2,726 2,858 / 2,858 2,988 / 2,858 2 x 2,988 2,858 / 2,858 / 2,726 3 x 2,858 2,988 /2,858 / 2,858 2,988 / 2,988 /2,858 3 x 2,988 Shipping Weight *3 No.1/No.2/No.3 kg 3,020 / 2,888 3,020 / 3,020 3,150/ 3,020 2 x 3,150 3,020 / 3,020 / 2,888 3 x 3,020 3,150 /3,020 / 3,020 3,150 / 3,150 / 3,020 3 x 3,150 Input Power kw /170/170 ASCCW-Z Notes: 1 The nominal cooling capacities are based on the GB/T (*1) Chilled Water Inlet/Outlet Temperature 12/7 Condenser Water Inlet/Outlet Temperature 30/35 2 Applicable Power Supplies Main Power Source 3φ Control Power Supplies 1φ 380V 50Hz 220V 50Hz 415V 50Hz 240V 50Hz 3 Working range Condense Water Outlet Temperature 22 to37 6 Chilled Water Outlet Temperature 5 to ( ) marked with *2 is available by selection switch. 5 The units greater than 220 WHYZ including 220 WHYZ consist of two modules or more and are separately shipped(*3) 6 Communication adapter connecting the unit to BMS (Building Management System) is an optional accessory, please get in touch with HITACHI or HITACHI distributor if required. 7 The unit with liquid crystal display differs from the unit with segment code display in electric box, however, both have the same outer dimensions. GENERAL DATA

8 DIMENSIONAL DATA RCU(G) WHYZ -E RCU(G) WHYZ -E NOTE: For RCU80,100,120 and RCUG80,100,120 The unit with the refrigerant R22 (RCU-) differs from the unit with R407C (RCUG-) in the location of the refrigerant inlet of condenser, however, both have the same outer dimensions. 7

9 DIMENSIONAL DATA RCU(G) WHYZ -E Note: The unit with the refrigerant R22 (RCU-) differs from the unit with R407C(RCUG-) in the location of the refrigerant inlet of condenser, however, both have the same outer dimensions. RCU(G)220WHYZ -E No.1 cycle View from P No.2 cycle P Front Face of Unit) Note: The R22(RCU-) and R407C (RCUG)units have the same outer dimensions and installation dimension. 8

10 DIMENSIONAL DATA RCU(G) WHYZ -E No.1 cycle View from P No.2 cycle P Front Face of Unit) Note: The R22 (RCU-)and R407C (RCUG-)units have the same outer dimensions and installation dimension. RCU(G) WHYZ -E No.1 cycle View from P No.2 cycle No.3 cycle P Front Face of Unit) Note: The R22 (RCU-)and R407C (RCUG-)units have the same outer dimensions and installation dimension. 9

11 Operation Space SELECTION DATA Model Dimension mm A B C D Mode Dimension mm A B C D RCU(G) RCU(G) B D C A RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) Note: * Rear side operation space depends on connection of field-piping RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) Weight Balance Center of Gravity and Operation Weight Rear Side of Unit Base 1 Center of gravity 3 O: Location of Foundation Bolt A B 2 Front Face of Unit 4 Model Weight Distribution (kg) Center of Gravity (mm) Location Location A B Operation Weight (kg) RCU (G) RCU (G) RCU (G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G)260-2 ; RCU(G) RCU(G)260-1 RCU(G) RCU(G)340-2 RCU(G) RCU(G) ; RCU(G)490-2, 3 ; RCU(G) RCU(G)340-1; RCU(G) RCU(G)490-1; RCU(G) RCU(G) Foundation Bolt and Rubber Mat Model Dimensions(mm) L1 L2 L3 L4 L5 L6 L7 Model Dimensions(mm) L1 L2 L3 L4 L5 L6 L7 RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G)80 RCU(G) RCU(G)380 RCU(G) Rubber Bushing (with Holes) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G) RCU(G)

12 SELECTION DATA The Field Piping Connection Fig. for RCU(G) Field Supplied Hitachi Standard Condenser Water Outlet Chilled Water Outlet With 269mm Flange) With 269mm Flange) Condenser Water Inlet With 269mm Flange) Chilled Water Inlet With 269mm Flange) NOTES (1)The Piping Connection above-mentioned is suitable for the units of RCU(G) and just for reference. (2)Support the water pipes with stay not to give the weight of water pipes directly to the unit,if not, a severe damage may occur due to excessive weight of the piping side, specially while the unit is running. The Field Piping Connection Fig. for RCU(G) Field Supplied Hitachi Standard Condenser Water Outlet Chilled Water Outlet With 269mm Flange) With 269mm Flange) Condenser Water Inlet With 269mm Flange) Chilled Water Inlet With 269mm Flange) NOTES (1)The Piping Connection above-mentioned is suitable for the units of RCU(G) and just for reference. (2)Support the water pipes with stay not to give the weight of water pipes directly to the unit,if not, a severe damage may occur due to excessive weight of the piping side, specially while the unit is running. 11

13 Selection Example SELECTION DATA 1.Determination the System Requirements. Calculate the total Load under design conditions. Given conditions: Power Source Frequency 50Hz Cooling Load 420kW (361,200kcal/h) Condenser Water Inlet Temperature 30 Condenser Water Outlet Temperature 35 Chilled Water Inlet Temperature 12 Chilled Water Outlet Temperature 7 Fouling Factor of Water Cooler 0.018m 2. /kw Fouling Factor of Condenser 0.044m 2. /kw 2.Select a Matching Model and Read Performance of the Unit Select unit model RCU120,according to the conditions mentioned above :condenser water outlet temperature (CDOT) of 35 and chilled water outlet temperature (CLOT) of 7. 3.Read the Unit Performance of the Model. The compressor Input (IPT), cooling capacity (CCAP),Chilled water flow rate (CFR), condenser flow rate (HFR) can directly be determined from the table and the figure. In the case where the data cannot directly be determined from the table, the data can be determined by interpolation. Compressor Input (IPT) 82.5kW Cooling Capacity(CCAP) 425kW (365,500 kcal/h) Chilled Water Flow Rate (CFR) 73.1m 3 /h Cooled Water Flow Rate (HFR) 87.3 m 3 /h Condenser Heat Discharge.(HCAP) 508 kw Cooler Pressure Drop (CPD) 87 kpa Condenser Pressure Drop (HPD) 48 kpa 4.Correct the Data Flow Rate When the water temperature difference of condenser or water cooler is different from 5, please correct the water flow rater of condenser or water cooler by following formulas. Corrected Flow = 5 Rate Given Temperature Difference ( ) or Corrected Flow= Water Flow Rate Factor Flow Rate From the Table Flow Rate from the Table Cooling Capacity and Compressor Input When fouling factors are different from 0.018m 2. /kw(cooler) and 0.44 m 2. /kw(condenser),the cooling capacity and compressor input will also be different from the value indicated in the cooling capacity table. The correction formulas are as follow: Corrected Cooling Capacity and Corrected Compressor Input Water Cooler Condenser Correction = Factor = Correction Factor Fouling Factor m 2. /kw Cooling Capacity Indicated in Table Compressor Input indicated in Table Correction Factor for Cooling Capacity and Compressor Input Regarding Fouling Factor Cooling Capacity Compressor Input

14 SELECTION DATA 13 13

15 CDOT CLOT Conversion Multiplier: 1kW = 860kcal/h Cooling Capacities = 3412Btu/h 1kPa = 0.102mAq RCU40 RCUG40 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CDOT CLOT RCU50 RCUG50 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CDOT: Condenser Water Outlet Temperature ( ) CFR: Chilled Water Flow Rate (m 3 /h) CLOT: Chilled Water Outlet Temperature ( ) HCAP: Condenser Heat Ejection (kw) IPT: Compressor Power Input (kw) HFR: Condenser Water Flow Rate (m 3 /h) CCAP: Cooling Capacity (kw) CPD: Cooler Pressure Drop (kpa) HPD: Condenser Pressure Drop (kpa) Note: 1 The chilled water flow rate and the condenser water flow rate are based on 5 of temperature difference between the outlet and inlet of the water cooler or the condenser. 2 The data circled by lines at 35 of CDOT and 7 of CLOT are based on the condition indicated in the General Data 14 SELECTION DATA

16 SELECTION DATA CDOT Conversion Multiplier: 1kW = 860kcal/h Cooling Capacities = 3412Btu/h 1kPa = 0.102mA CLOT RCU60 RCUG60 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD RCU80 RCUG80 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CDOT: Condenser Water Outlet Temperature ( ) CFR: Chilled Water Flow Rate (m 3 /h) CLOT: Chilled Water Outlet Temperature ( ) HCAP: Condenser Heat Ejection (kw) IPT: Compressor Power Input (kw) HFR: Condenser Water Flow Rate (m 3 /h) CCAP: Cooling Capacity (kw) CPD: Cooler Pressure Drop (kpa) HPD: Condenser Pressure Drop (kpa) Note: 1 The chilled water flow rate and the condenser water flow rate are based on 5 of temperature difference between the outlet and inlet of the water cooler or the condenser. 2 The data circled by lines at 35 of CDOT and 7 of CLOT are based on the condition indicated in the General Data 15

17 SELECTION DATA CDOT CDOT Conversion Multiplier: 1kW = 860kcal/h Cooling Capacities = 3412Btu/h 1kPa = 0.102mAq CLOT RCU100 RCUG100 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CLOT RCU120 RCUG120 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CDOT: Condenser Water Outlet Temperature ( ) CFR: Chilled Water Flow Rate (m 3 /h) CLOT: Chilled Water Outlet Temperature ( ) HCAP: Condenser Heat Ejection (kw) IPT: Compressor Power Input (kw) HFR: Condenser Water Flow Rate (m 3 /h) CCAP: Cooling Capacity (kw) CPD: Cooler Pressure Drop (kpa) HPD: Condenser Pressure Drop (kpa) Note: 1 The chilled water flow rate and the condenser water flow rate are based on 5 of temperature difference between the outlet and inlet of the water cooler or the condenser. 2 The data circled by lines at 35 of CDOT and 7 of CLOT are based on the condition indicated in the General Data 16

18 SELECTION DATA Conversion Multiplier: 1kW = 860kcal/h Cooling Capacities = 3412Btu/h 1kPa = 0.102mAq CDOT CLOT RCU150 RCUG150 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CDOT CLOT RCU180 RCUG180 IPT CCAP CFR CPD HCAP HFR HPD IPT CCAP CFR CPD HCAP HFR HPD CDOT: Condenser Water Outlet Temperature ( ) CFR: Chilled Water Flow Rate (m 3 /h) CLOT: Chilled Water Outlet Temperature ( ) HCAP: Condenser Heat Ejection (kw) IPT: Compressor Power Input (kw) HFR: Condenser Water Flow Rate (m 3 /h) CCAP: Cooling Capacity (kw) CPD: Cooler Pressure Drop (kpa) HPD: Condenser Pressure Drop (kpa) Note: 1 The chilled water flow rate and the condenser water flow rate are based on 5 of temperature difference between the outlet and inlet of the water cooler or the condenser. 2 The data circled by lines at 35 of CDOT and 7 of CLOT are based on the condition indicated in the General Data 17

19 CDOT CDOT SELECTION DATA Conversion Multiplier: 1kW = 860kcal/h Cooling Capacities = 3412Btu/h 1kPa = 0.102mAq RCU220 CLOT CFR CPD HFR HPD IPT CCAP HCAP NO.1 NO.2 NO.1 NO.2 NO.1 NO.2 NO.1 NO RCUG220 CLOT CFR CPD HFR HPD IPT CCAP HCAP NO.1 NO.2 NO.1 NO.2 NO.1 NO.2 NO.1 NO CDOT: Condenser Water Outlet Temperature ( ) CFR: Chilled Water Flow Rate (m 3 /h) CLOT: Chilled Water Outlet Temperature ( ) HCAP: Condenser Heat Ejection (kw) IPT: Compressor Power Input (kw) HFR: Condenser Water Flow Rate (m 3 /h) CCAP: Cooling Capacity (kw) CPD: Cooler Pressure Drop (kpa) HPD: Condenser Pressure Drop (kpa) Notes: 1 The chilled water flow rate and the condenser water flow rate are based on 5 of temperature difference between the outlet and inlet of the water cooler or the condenser. 2 The data circled by lines at 35 of CDOT and 7 of CLOT are based on the condition indicated in the General Data. 3. NO.1, NO.2 at the title row means No.1, No.2 module of the unit separately. 18